# NoClassDefFoundError in installation
**URL:** https://discuss.elastic.co/t/noclassdeffounderror-in-installation/165772
**Category:** Elasticsearch
**Created:** [January 25, 2019, 12:28pm UTC](https://discuss.elastic.co/t/noclassdeffounderror-in-installation/165772 "2019-01-25T12:28:35Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@sv\_ldn](https://discuss.elastic.co/u/sv_ldn)
#### Post date: [January 25, 2019, 12:28pm UTC](https://discuss.elastic.co/t/noclassdeffounderror-in-installation/165772/1 "2019-01-25T12:28:35Z")
Get the following error when running elasticsearch.bat
Exception in thread "main" java.lang.NoClassDefFoundError: C:\Users\sv\_ldn\ElasticSearch\elasticsearch-6/5/4\lib\elasticsearch-cli-6/5/4/jar
I put an echo in elasticsearch-env.bat before the version check
echo "%JAVA%" -cp "%ES\_CLASSPATH%" "org.elasticsearch.tools.java\_version\_checker.JavaVersionChecker"
The output was
""C:\Oracle\product\11.2.0.2\_32\client\jdk\bin\java.exe"" -cp "C:\Users\sv\_ldn\ElasticSearch\elasticsearch-6.5.4\lib\*" "org.elasticsearch.tools.java\_version\_checker.JavaVersionChecker"
Any help appreciated in resolving the exception
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### Author:  [@dadoonet](https://discuss.elastic.co/u/dadoonet)
#### Post date: [January 25, 2019, 12:45pm UTC](https://discuss.elastic.co/t/noclassdeffounderror-in-installation/165772/2 "2019-01-25T12:45:04Z")
This looks weird to me `elasticsearch-6/5/4\lib\elasticsearch-cli-6/5/4/jar`. It should be something like `elasticsearch-6.5.4\lib\elasticsearch-cli-6.5.4.jar`. Did you modify any file?
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### Author:  [@sv\_ldn](https://discuss.elastic.co/u/sv_ldn)
#### Post date: [January 25, 2019, 12:56pm UTC](https://discuss.elastic.co/t/noclassdeffounderror-in-installation/165772/3 "2019-01-25T12:56:45Z")
No, and as you can see if when echo, it does print it out correctly. But the actual exception message does seem to have the weird formatting
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### Author:  [@sv\_ldn](https://discuss.elastic.co/u/sv_ldn)
#### Post date: [January 25, 2019, 12:57pm UTC](https://discuss.elastic.co/t/noclassdeffounderror-in-installation/165772/4 "2019-01-25T12:57:31Z")
The only thing I modified was the elasticseach-env.bat to print the echo. Same problem if remove that statement.
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### Author:  [@dadoonet](https://discuss.elastic.co/u/dadoonet)
#### Post date: [January 25, 2019, 1:43pm UTC](https://discuss.elastic.co/t/noclassdeffounderror-in-installation/165772/5 "2019-01-25T13:43:25Z")
I don't know. May be someone from the microsoft team knows?
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [February 22, 2019, 1:43pm UTC](https://discuss.elastic.co/t/noclassdeffounderror-in-installation/165772/6 "2019-02-22T13:43:26Z")
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